[PR #598] Add Graphite (gt CLI) test suite for git-ai attribution preservation #600

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opened 2026-03-02 04:14:05 +03:00 by kerem · 0 comments

kerem commented

2026-03-02 04:14:05 +03:00

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Original Pull Request: https://github.com/git-ai-project/git-ai/pull/598

State: closed
Merged: Yes

Add Graphite (`gt` CLI) test suite for git-ai attribution preservation

Summary

Adds a comprehensive test suite (tests/graphite.rs, ~1160 lines) that verifies git-ai's line-level AI/human attribution survives Graphite CLI operations. Also adds gt CLI installation to CI.

Architecture: A PATH-based wrapper approach creates a git symlink pointing to the git-ai binary, prepended to PATH so that when gt internally calls git, it actually invokes git-ai for attribution tracking.

Results: 25 tests total — 16 passing, 9 #[ignore]'d with documentation.

The 9 ignored tests expose a real root-cause bug: Graphite's restack/move/absorb/split/delete operations use git commit-tree + git update-ref (plumbing commands) instead of git rebase. Plumbing commands bypass all git hooks, so git-ai never gets a chance to create or copy attribution notes for the new commit SHAs. This is documented extensively in the file header.

Changes:

New file: tests/graphite.rs — 25 test cases across 14 groups
CI: Install Node.js 22 + Graphite CLI via npm
Test util: Make get_binary_path() public (was pub(crate))

Review & Testing Checklist for Human

CRITICAL: Windows PATH separator bug — wrapper_path() hardcodes : as PATH separator (line 146), but Windows uses ;. This will break all tests on Windows CI. Verify Windows CI passes or fix before merge.
CI test parallelism — Tests were verified locally with --test-threads=1 but CI runs with --test-threads=8. The OnceLock statics should handle this correctly, but verify CI passes on all platforms (ubuntu, windows, macos).
Verify the 9 ignored tests accurately document the root cause — The claim is that gt restack uses git commit-tree instead of git rebase. Spot-check one of the ignored tests (e.g., test_gt_restack_preserves_attribution) to confirm the documented behavior matches reality.
CI stability — Adding npm install -g @withgraphite/graphite-cli@stable to every test run adds a new external dependency. Verify this doesn't significantly slow down CI or introduce flakiness.
Test coverage quality — The 16 passing tests only cover operations that don't involve restacking (create, squash, fold, navigation, rename, track). The core user-reported issue (attribution lost after restack operations) is documented but NOT caught by any non-ignored test. Consider whether this is acceptable coverage or if we need a different approach to handle the commit-tree issue.

Test Plan

Run cargo test --test graphite locally (requires gt CLI installed)
Verify CI passes on all platforms (ubuntu, windows, macos)
Manually test a gt restack operation in a real repo to confirm attribution is lost (validates the ignored tests document real behavior)

Notes

Link to Devin run: https://app.devin.ai/sessions/41f870310b3e408b9ee4cb93da0608b9
Requested by: @svarlamov
The ignored tests serve as documentation of expected behavior once git-ai handles commit-tree or Graphite changes its rebase strategy
The require_gt!() macro skips tests when gt is unavailable locally, but panics in CI (where gt MUST be installed)

**Original Pull Request:** https://github.com/git-ai-project/git-ai/pull/598 **State:** closed **Merged:** Yes --- # Add Graphite (`gt` CLI) test suite for git-ai attribution preservation ## Summary Adds a comprehensive test suite (`tests/graphite.rs`, ~1160 lines) that verifies git-ai's line-level AI/human attribution survives Graphite CLI operations. Also adds `gt` CLI installation to CI. **Architecture:** A PATH-based wrapper approach creates a `git` symlink pointing to the git-ai binary, prepended to `PATH` so that when `gt` internally calls `git`, it actually invokes `git-ai` for attribution tracking. **Results:** 25 tests total — **16 passing, 9 `#[ignore]`'d with documentation.** The 9 ignored tests expose a **real root-cause bug**: Graphite's restack/move/absorb/split/delete operations use `git commit-tree` + `git update-ref` (plumbing commands) instead of `git rebase`. Plumbing commands bypass all git hooks, so git-ai never gets a chance to create or copy attribution notes for the new commit SHAs. This is documented extensively in the file header. **Changes:** - New file: `tests/graphite.rs` — 25 test cases across 14 groups - CI: Install Node.js 22 + Graphite CLI via npm - Test util: Make `get_binary_path()` public (was `pub(crate)`) ## Review & Testing Checklist for Human - [ ] **CRITICAL: Windows PATH separator bug** — `wrapper_path()` hardcodes `:` as PATH separator (line 146), but Windows uses `;`. This will break all tests on Windows CI. Verify Windows CI passes or fix before merge. - [ ] **CI test parallelism** — Tests were verified locally with `--test-threads=1` but CI runs with `--test-threads=8`. The `OnceLock` statics should handle this correctly, but verify CI passes on all platforms (ubuntu, windows, macos). - [ ] **Verify the 9 ignored tests accurately document the root cause** — The claim is that `gt restack` uses `git commit-tree` instead of `git rebase`. Spot-check one of the ignored tests (e.g., `test_gt_restack_preserves_attribution`) to confirm the documented behavior matches reality. - [ ] **CI stability** — Adding `npm install -g @withgraphite/graphite-cli@stable` to every test run adds a new external dependency. Verify this doesn't significantly slow down CI or introduce flakiness. - [ ] **Test coverage quality** — The 16 passing tests only cover operations that don't involve restacking (create, squash, fold, navigation, rename, track). The core user-reported issue (attribution lost after restack operations) is documented but NOT caught by any non-ignored test. Consider whether this is acceptable coverage or if we need a different approach to handle the `commit-tree` issue. ### Test Plan 1. Run `cargo test --test graphite` locally (requires `gt` CLI installed) 2. Verify CI passes on all platforms (ubuntu, windows, macos) 3. Manually test a `gt restack` operation in a real repo to confirm attribution is lost (validates the ignored tests document real behavior) ### Notes - Link to Devin run: https://app.devin.ai/sessions/41f870310b3e408b9ee4cb93da0608b9 - Requested by: @svarlamov - The ignored tests serve as documentation of expected behavior once git-ai handles `commit-tree` or Graphite changes its rebase strategy - The `require_gt!()` macro skips tests when `gt` is unavailable locally, but panics in CI (where `gt` MUST be installed)  --- <a href="https://app.devin.ai/review/git-ai-project/git-ai/pull/598" target="_blank"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://static.devin.ai/assets/gh-open-in-devin-review-dark.svg?v=1"> <img src="https://static.devin.ai/assets/gh-open-in-devin-review-light.svg?v=1" alt="Open with Devin"> </picture> </a>